/*
 * (c) Copyright 2009 Hewlett-Packard Development Company, LP
 * All rights reserved.
 * [See end of file]
 */

package com.hp.hpl.jena.tdb.modify;

import com.hp.hpl.jena.sparql.engine.binding.Binding;
import com.hp.hpl.jena.sparql.modify.UpdateProcessorFactory;
import com.hp.hpl.jena.sparql.modify.UpdateProcessorRegistry;
import com.hp.hpl.jena.sparql.modify.UpdateProcessorVisitor;
import com.hp.hpl.jena.sparql.modify.UpdateVisitor;
import com.hp.hpl.jena.sparql.modify.op.Update;
import com.hp.hpl.jena.tdb.store.DatasetGraphTDB;
import com.hp.hpl.jena.update.GraphStore;
import com.hp.hpl.jena.update.UpdateProcessor;
import com.hp.hpl.jena.update.UpdateRequest;

public class UpdateProcessorTDB implements UpdateProcessor
{
    DatasetGraphTDB graphStore ;
    UpdateRequest request ;
    Binding inputBinding ;
    
    public UpdateProcessorTDB(DatasetGraphTDB graphStore, UpdateRequest request, Binding inputBinding)
    {
        // UpdateProcessor should be extendable.
        this.graphStore = graphStore ;
        this.request = request ;
        this.inputBinding = inputBinding ;
    }
    
    //@Override
    public void execute()
    {
        graphStore.startRequest() ;
        UpdateVisitor v = new UpdateProcessorVisitor(graphStore, inputBinding) ;
        for ( Update update : request.getUpdates() )
            update.visit(v) ;
        graphStore.finishRequest() ;
    }

    // ---- Factory
    public static UpdateProcessorFactory getFactory() { 
        return new UpdateProcessorFactory()
        {
            public boolean accept(UpdateRequest request, GraphStore graphStore)
            {
                return (graphStore instanceof DatasetGraphTDB) ;
            }
        
            public UpdateProcessor create(UpdateRequest request, GraphStore graphStore, Binding inputBinding)
            {
                return new UpdateProcessorTDB((DatasetGraphTDB)graphStore, request, inputBinding) ;
            }
        } ;
    }

    public static void register() { UpdateProcessorRegistry.get().add(getFactory()) ; }
}

/*
 * (c) Copyright 2009 Hewlett-Packard Development Company, LP
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */